As the mistake was carried out through the god Indra, he grants Hanuman a want that his human body might be as robust as Indra's Vajra, Which his Vajra can also not harm him. As well as Indra other gods have also granted him wishes: the God Agni granted Hanuman https://fredl418ybd8.blogspothub.com/36044521/indicators-on-hanuman-you-should-know